Enable dTPM for Smart Intersection Security#

Prerequisites:

  • dTPM module must be physically connected to the PTL Board

  • Recommended: Infineon TPM (Xenon_4.1.0) for optimal Smart Intersection compatibility

Step 1: Download Required Components#

Download IFWI Firmware

  • Navigate to: IFWI Firmware Download Location

    • Download the IFWI file

    • You need to sign in to intel.com to get the access.

    • Extract the zip file.

    • Locate the binary file(*.bin) file according to your platform (e.g., 858133_ptl-h-refbios_releasepackage\858133_ptl-h-refbios3332_52releasepackage\IFWI\CRB\ECG_PTL_PR04_XXXX-XXXODCA_RPRF_SEP5_11E50692_2025WW34.4.02_BI333252_CRB.bin)

  • Navigate to: MFIT Download Location

    • Download “Intel_CSME_SW_PTL_2540.8.40.0_Consumer_Corporate.zip” under “Intel_CSME_SW_PTL_2540.8.40.0_Consumer_Corporate”

    • Extract the downloaded zip file

    • “mfi.exe” will be located under “Intel_Silicon_FW_Kit_PTL-H12Xe_ES1_ES2_2025WW41.2.02\Tools\System_Tools\MFIT\Windows64”

Step 2: Configure IFWI with dTPM Support#

  1. Launch MFIT Tool: Execute mfit.exe and wait for the application to fully load.

  2. Decompose Original IFWI:

    • Click the “Decompose Image” button

    • Select the downloaded IFWI file from the extracted directory

    • Wait for the decomposition process to complete modul MFIT Tool Interface IFWI Decomposition Process

  3. Enable dTPM Configuration & Build Image:

    • Navigate to “Platform Protection Features” section

    • Locate “TPM Technologies” subsection

    • From the available TPM options, select “dTPM”

    • Click “Build Image” to generate the new firmware image

    • The tool will create a new IFWI file named image.bin in the same directory

    • Verify the image.bin file has been successfully created

dTPM Configuration Settings

Step 3: Flash the Modified IFWI#

Important: Power OFF the PTL board before flashing

  1. Prepare Flashing Environment:

    • Ensure the PTL board is properly connected to the flashing hardware

    • Verify DediProg or TTK3 is correctly configured and recognized

  2. Flash the New IFWI:

    • Using your preferred flashing tool (DediProg or TTK3), load the newly generated image.bin file

    • Initiate the flashing process

    • Monitor the flashing progress for any errors

    • Power cycle the PTL board after successful flashing

  3. Verify dTPM Functionality:

    • Check that dTPM functionality is enabled in the system BIOS/UEFI

    • Confirm dTPM is properly detected by the operating system